DBT29-261-2019······1

1 總則······10

2 術語和符號······11

2.1 術語······11

2.2 符號······12

3 基本規定······16

3.1 一般設計規定······16

3.2 結構選型······17

3.3 材料性能指標······19

3.4 撓度容許值······21

4 結構計算······22

4.1 一般計算原則······22

4.2 靜力計算······22

4.3 穩定性計算······23

4.4 抗震計算······24

4.5 抗風計算······25

4.6 防連續倒塌······25

5 桿件和節點的設計與構造······27

5.1 桿件······27

5.2 板式節點······28

5.3 螺栓球節點······37

5.4 轂式節點······44

5.5 鑄鋁節點······47

5.6 螺栓環節點······48

5.7 支座節點······51

6 制作安裝與防護······55

6.1 一般規定······55

6.2 制作與預拼裝······56

6.3 包裝與運輸······64

6.4 安裝······66

6.5 防腐······66

6.6 防火、隔熱······67

7 驗收······68

7.1 一般規定······68

7.2 支承面允許偏差······69

7.3 總拼和安裝允許偏差······70

7.4 交驗······71

附錄A 常用材料性能指標······73

附錄B 常用網架形式······76

附錄C 常用網殼形式······83

附錄D 鋁合金材料的彈塑性本構關系······87

本規程用詞說明······88

引用標準名錄······89

條文說明······92

1 總則······95

3 基本規定······96

3.1 一般設計規定······96

3.2 結構選型······97

3.3 材料性能指標······99

3.4 撓度容許值······101

4 結構計算······102

4.1 一般計算原則······102

4.2 靜力計算······103

4.3 穩定性計算······104

4.4 抗震計算······105

4.5 抗風計算······108

5 桿件與節點的設計與構造······109

5.1 桿件······109

5.2 板式節點······110

5.3 螺栓球節點······112

5.4 轂式節點······114

5.5 鑄鋁節點······119

5.6 螺栓環節點······121

5.7 支座節點······122

6 制作安裝與防護······124

6.1 一般規定······124

6.2 制作與預拼裝······125

6.3 包裝與運輸······126

6.4 安裝······127

6.5 防腐······128

6.6 防火、隔熱······130

7 驗收······131

7.1 一般規定······131

7.2 支承面允許偏差······131

7.3 總拼和安裝允許偏差······131

7.4 交驗······132